This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32AX150S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI32 Standard Air Cylinder SI32AX150S
The AirTAC SI32 Standard Air Cylinder SI32AX150S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 150mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32AX150S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke150 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32AX150S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SI32 Standard Air Cylinder SI32AX150S
The AirTAC SI32AX150S is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 150mm stroke. It delivers 402N push force at 0.5MPa via a G1/8 port. The direct replacement is the SAI32AX150S, matching the bore, stroke, output force, and mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI variants the SI lacked. This unit has a SUS420J2 stainless rod and a magnet for CS1-B/DS1-B sensors.
Airtac SI32 Standard Air Cylinder SI32AX150S Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32AX150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32AX150S |
| Bore size | Ø32 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32AX150S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32AX150S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32AX150S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI32 Standard Air Cylinder SI32AX150S Is Used
Small Part Clamping
Ideal for securing lightweight electronics components during machining, utilizing the 402N push force and 150mm stroke to actuate tooling arms.
Package Diverting
Deploys a 150mm stroke to push small parcels off a production line, taking advantage of the compact 32mm ISO 15552 profile barrel.
Compact Assembly Jigs
Fits into tight fixture spaces to drive 20kg vertical lift operations, relying on the SUS420J2 stainless rod for corrosion resistance.
Replacing the Airtac SI32 Standard Air Cylinder SI32AX150S with the SAI32AX150S
To replace the SI32AX150S, order the SAI32AX150S. Verify the ISO 15552 mounting interface, 150mm stroke, G1/8 port, and mounting accessory. Keep the -S magnet for CS1-B/DS1-B switches (the SAI uses current AirTAC switches) and the -A SUS420J2 rod. For higher force, a 40mm bore yields 628N push at 0.5MPa; a 25mm bore offers less. For stroke >=300mm, add external guides to prevent rod bending. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32AX150S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32AX150S FAQ
Yes, the SI32AX150S is discontinued. The direct replacement is the SAI32AX150S. It is dimensionally interchangeable per ISO 15552, matching the 32mm bore, 150mm stroke, G1/8 port, and mounting interface, so it drops directly into existing fixtures.
This 32mm bore cylinder uses a G1/8 port. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, and a theoretical maximum of 82kgf at 1.0MPa. It operates at 30-800mm/s with a 27mm adjustable air cushion at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32AX150S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32AX150S replacement — usually within 7-8 hours.